Apollo CM Guidance and Navigation Computer Buffer Unit, measuring 6 x 4 x 6, bearing a large parts tag affixed to the reverse reading, “Unit, Computer Buffer, Guidance & Navigation, NAA/S & ID Control No. ME901-0271-0002, Contract No. M5H3XA-450001…Part No. 106068-G002, Mfgr Serial No. 10136SA12365, Dec 13 1965.” The opposite side has three connection ports labeled “J200,” “J202,” and “J203.” In fine condition. The Computer Buffer Unit was part of a system of pre-flight ground check out equipment to confirm the Apollo Guidance Computer (AGC) was fully operational for the lunar mission.
